#1

RX+

Output

Ethernet port, positive line of the differential input signal pair

#2

RX-

Output

Ethernet port, negative line of the differential input signal pair

#3

AVCC

Input

"Clean" 1.8V power output for magnetics circuitry

#4

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#5

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#6

GND

Ground

#7

TX+

Input

Ethernet port, positive line of the differential output signal pair

#8

TX-

Input

Ethernet port, negative line of the differential output signal pair